US8211200B2ActiveUtilityA1

Controlled release nitrogeneous fertilizer composition system

59
Individually held — no corporate assignee on recordPriority: Oct 22, 2008Filed: Oct 16, 2009Granted: Jul 3, 2012
Est. expiryOct 22, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Edward M. Gres
C05B 7/00
59
PatentIndex Score
1
Cited by
9
References
27
Claims

Abstract

A controlled release nitrogeneous fertilizer composition system, comprising (a) a tannin selected from the group consisting of purified tannins, purified modified tannins, condensate tannins, and mixtures thereof; (b) a nitrogeneous fertilizer component selected from the group consisting of an ammonia fertilizer, an ammonium fertilizer, a urea fertilizer, a nitrogen containing fertilizer, a natural nitrogen containing organic fertilizer, a nitrogen containing waste product fertilizer, a slow and control release fertilizer, and mixtures thereof; and optionally (c) a carrier. Also disclosed is a method for making such fertilizer composition systems.

Claims

exact text as granted — not AI-modified
1. A controlled release nitrogeneous fertilizer composition system, comprising:
 (a) a condensate tannin selected from the group consisting of a purified condensate tannin, a purified modified condensate tannin and mixtures/solutions thereof; and 
 (b) a nitrogeneous fertilizer component selected from the group consisting of an ammonia fertilizer, an ammonium fertilizer, a urea fertilizer, a nitrogen containing fertilizer, a natural nitrogen containing organic fertilizer, a nitrogen containing waste product fertilizer, a slow and control release nitrogenous fertilizer, and mixtures thereof, 
 wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 0.1:99.9 to 10:90. 
 
     
     
       2. The controlled release nitrogeneous fertilizer system of  claim 1 , wherein the condensate tannin is selected from the group consisting of mimosa tannin, pine tannin, quebracho tannin, hemlock tannin, mangrove bark tannin, gambier tannin, and mixtures/solutions thereof. 
     
     
       3. The controlled release nitrogeneous fertilizer system of  claim 2 , wherein the condensate tannin is mimosa tannin. 
     
     
       4. The controlled release nitrogeneous fertilizer system of  claim 1 , consisting essentially of the tannin and the nitrogeneous fertilizer. 
     
     
       5. The controlled release nitrogeneous fertilizer system of  claim 1 , further comprising a carrier. 
     
     
       6. The controlled release nitrogeneous fertilizer system of  claim 5 , consisting essentially of the tannin, the nitrogeneous fertilizer, and the carrier. 
     
     
       7. The controlled release nitrogeneous fertilizer system of  claim 5 , wherein the carrier comprises formaldehyde. 
     
     
       8. The controlled release nitrogeneous fertilizer system of  claim 7 , wherein the formaldehyde is from 0.5 to 1.5% (w/w) of the system. 
     
     
       9. The controlled release nitrogeneous fertilizer system of  claim 1 , wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 1:99 to 4:96. 
     
     
       10. The controlled release nitrogeneous fertilizer system of  claim 9 , wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 2:98 to 3:97. 
     
     
       11. The controlled release nitrogeneous fertilizer system of  claim 1 , wherein the nitrogeneous fertilizer component is selected from the group consisting of ammonium sulphate fertilizer, urea ammonium nitrate liquid fertilizer, anhydrous ammonia, aqueous ammonia, diammonium phosphate, and monoammonium phosphate. 
     
     
       12. The controlled release nitrogeneous fertilizer system of  claim 1 , wherein the nitrogeneous fertilizer component is a nitrogen containing waste product fertilizer selected from the group consisting of manure and animal excretia. 
     
     
       13. The controlled release nitrogeneous fertilizer system of  claim 1 , wherein the nitrogeneous fertilizer component comprises a urea fertilizer selected from the group consisting of formaldehyde conditioned/hardened urea granules and prill fertilizer. 
     
     
       14. The controlled release nitrogeneous fertilizer system of  claim 1 , further characterized as a solid particulate. 
     
     
       15. The controlled release nitrogeneous fertilizer system according to  claim 14 , wherein 90% w/w of the solid particulate has a size which is 200 mesh or smaller, and the remaining 10% w/w of the solid particulate, based on the total weight thereof, has a size which is between 200 mesh and 30 mesh. 
     
     
       16. The controlled release nitrogeneous fertilizer system according to  claim 14 , wherein 99.5% w/w of the solid particulate has a size between 4-100 mesh, and the remaining 0.5% w/w of the solid particulate, based on the total weight thereof, has a size which is smaller than 100 mesh. 
     
     
       17. A method for the manufacturing of a controlled release nitrogeneous fertilizer comprising adding a condensate tannin or a modified condensate tannin to a melt, crystalline, or particulate finely divided form of an ammoniacal nitrogeneous fertilizer, wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 0.1:99.9 to 10:90. 
     
     
       18. The method of  claim 17 , further comprising following the addition of condensate tannin or modified condensate tannin, a compacting step, a grinding step, and a screening step, to form homogeneous granules. 
     
     
       19. The method of  claim 17 , further comprising following the addition of condensate tannin or modified condensate tannin, a granulation step wherein the fertilizer is granulated to form homogeneous granules. 
     
     
       20. The method of  claim 19 , wherein (a) a primary nutrient element, (b) a micronutrient, or (c) a primary nutrient element and a micronutrient are added during the granulation step. 
     
     
       21. A method for the manufacturing of a controlled release nitrogeneous fertilizer comprising adding (a) a purified condensate tannin or a modified condensate tannin, and (b) a carrier comprising water, isocyanate, protein, compost or a liquid acid, to a nitrogeneous fertilizer, wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 0.1:99.9 to 10:90. 
     
     
       22. The method of  claim 17  or  claim 21 , wherein the ammoniacal nitrogeneous fertilizer is selected from the group consisting of an ammonia fertilizer, an ammonium fertilizer, a urea fertilizer, a nitrogen containing fertilizer, a natural nitrogen containing organic fertilizer, a nitrogen containing waste product fertilizer, a slow and control release nitrogenous fertilizer, and mixtures thereof. 
     
     
       23. A method for the manufacturing of a controlled release nitrogeneous fertilizer comprising adding a condensate tannin or a modified condensate tannin to a urea melt to produce homogeneous conditioned granules or prills of urea, wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 0.1:99.9 to 10:90. 
     
     
       24. The method of  claim 23 , wherein the urea melt further comprises formaldehyde. 
     
     
       25. A method for the manufacturing of a controlled release nitrogeneous fertilizer comprising:
 (a) dissolving a condensate tannin or a modified condensate tannin in a water carrier; 
 (b) applying the condensate tannin or modified condensate tannin from step (a) to a manure or an animal excretia fertilizer, either before or after field application of said fertilizer, 
 wherein the weight ratio of the tannin to the manure or animal excretia fertilizer is from 0.1:99.9 to 10:90. 
 
     
     
       26. The method of  claim 25 , wherein the tannin is a mimosa tannin. 
     
     
       27. A controlled release nitrogeneous fertilizer composition system, comprising:
 (a) a condensate tannin selected from the group consisting of a purified condensate tannin, a purified modified condensate tannin, and mixtures/solutions thereof; and 
 (b) a nitrogeneous fertilizer component selected from the group consisting of an ammonia fertilizer, an ammonium fertilizer, a urea fertilizer, a nitrogen containing fertilizer, a natural nitrogen containing organic fertilizer, a nitrogen containing waste product fertilizer, a slow and control release nitrogeneous fertilizer, and mixtures thereof, 
 wherein the weight ratio of the tannin to the nitrogeneous fertilizer is from 0.1:1 to 0.001:1.

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